Rotatable supporting means for lamps



Oct. 28, 1952 B. J. OSOWSKI ROTATABLE SUPPORTING MEANS FOR LAMPS FiledOct. 27. 1948 Inventor Ba lfazar J. Osows/ri Patented Got. 28, 1952ROTATABLE SUPPORTING MEANS FOR LAMPS Baltazar J. Osowski, Cicero, 111.,assignor of onehalf to Frank E. Stacknik, Cicero, Ill.

Application October 27, 1948, Serial No. 56,787

3 Claims.

This invention relates to new and useful improvements and structuralrefinements in lamps, and the principal object of the invention is toprovide what may be referred to as an adjustable lamp, such as may beconveniently and effectively employed in automobiles, trucks, busses,and similar vehicles, for reading purposes and general illumination.

In particular, the invention contemplates the provision of an adjustablelamp bracket whereby the lamp supported by such a bracket may be set oradjusted independently with respect to mutually perpendicular axes.

An important feature of the invention resides, therefore, in theparticular construction of the adjustable lamp bracket and in itsadaptability to, accommodate lamps of a conventional type.

Some of the advantages of the invention lie in its simplicity ofconstruction, convenience in operation, and in its adaptability toeconomical manufacture.

With the above. more important objects and features in view, and suchother objects and features as may become apparent as this specificationproceeds, the invention consists essentially of the arrangement andconstruction of parts as illustrated in the accompanying drawings, inwhich:

Figure 1 is a perspective view of the invention;

Figure 2 is a vertical cross sectional view thereof;

Figure 3 is an exploded perspective view of the bracket used in theinvention; and,

Figure 4 is a perspective view of a lens retainer used therein.

Like characters of reference are employed to designate like parts in thespecification and throughout the several views.

Referring now to the accompanying drawings in detail, the inventionconsists of an adjustable lamp designated generally by the referencecharacter ID, the same embodying in its construction a conventional lampunit l2 and an adjustable bracket assembly I4.

The lamp unit I2 includes a suitable housing I6 provided with a door inwhich is removably mounted a magnifying lens I8, this being effected bythe provision of a lens retainer best shown in Figure 4, which isremovably mounted in the housing I6 by a suitable screw 22 and whichincludes resilient fingers 24, 26, substantially as shown. The fingers24, 26 are engageable with a retainer ring 28 and a gasket 30 used inassociation with the magnifying lens I8, so that the lens is retained inposition in the door of the housing I6 in a more-or-less conventionalmanner.

The lamp housing I6 is provided with a protuberance 32 in which ismounted a socket 34 equipped with a conventional incandescent lamp bulb36, and the socket 34 usually includes an externally screw-threadedshank or sleeve 38 whereby the lamp unit I2 is customarily attached toits supporting structure, such as for example, to a fender or cowl of anautomobile.

The essence of novelty in the invention resides, of course, in theconstruction and arrangement of the adjustable bracket I4, thisconsisting of a mounting plate or flange 40 provided at one side thereofwith a recess 42, while its remaining side is equipped with an integral,tubular ferrule or bearing 44. An L-shaped arm or conduit 46, best shownin the accompanying Figure 3, is provided in one end portion thereofwith an internal screw-thread 48, while its remaining end portion isdiametrically reduced as at so as to provide an annular shoulder 52.(See Figure 2.)

The diametrically reduced portion 50 of the conduit 46 is rotatable inthe aforementioned bearing 44 of the mounting plate 46 and isscrewthreaded as at 54 to receive a nut 56 and a lock washer 58, asshown in Figure 2. The nut 56 and the lock washer 58 are disposed in therecess 42 of the plate 40, and it is to be also noted that a frictionring 60, formed from fibre, rubber, or the like, is interposed betweenthe outer end of the bearing 44 and the shoulder 52 of the conduit 46.It should be understood that the nut 56 is not fully tightened againstthe lock washer '58, so that by virtue of the lock washer and of thefriction-ring 60, the portion 50 of the conduit 46 is rotatable in thebearing 44 but the lock washer 58, by its resiliency, exerts suflicientpressure to prevent free rotation of the conduit portion 50 and theconduit, therefore,-remains in a predetermined position to which it isset.

The internally screw-threaded portion 48 of the conduit 46 is adapted toreceive what may be referred to as a stepped lamp supporting collar andbushing 62, this being screw-threaded into the portion 48 of the conduitas at 64 and being provided with an axial bore 66 in which the shank 38of the lamp unit I2 is rotatable. The member 62 includes an outturnedlamp supporting flange 68 which supportably engages the protuberance 32of the lamp housing I6, and a suitable nut I0 is provided on the lampshank 38 so a to I rotatably attach the lamp unit to the bracket I4.

The incandescent bulb 35 is energized by a suitable conductor 12 whichextends through the shank 38 and through the conduit 46 substantially asshown in Figure 2.

When the invention is placed in use, the plate 40 of the bracket 14,being provided with suitable apertures 14, may be secured by bolts,screws, or the like, 16, to suitable supporting structure, such as awall 18, and by virtue of the rotatability of the conduit portion 50 inthe bearing 44, and of the rotatability of the shank 38 in the bushing62, the lamp unit I2 may be adjusted independently in two perpendicularplanes, as exemplified at 89, 82, 84, etc. in Figure 1.

Finally, it may be explained that in assembling the bracket M, thebushing 62 and the nut are first applied to the lamp shank 38, whereuponthe bushing and nut, together with the lamp unit [2, are applied to theportion #8 of the conduit 46 and th conduit may then beapplied to themounting plate 40 by employing the nut and lock washer 56, 58respectively, before the entire assembly is secured to the wall 18 bythe screws 16.

It is believed that the advantages-and use of the invention will beclearly apparent from the foregoing disclosure and accordingly, furtherdescription thereof at this point is deemed unnecessary.

While in the foregoing there has been shown and described the preferredembodiment of this invention, it is to be understood that minor changesin the details of construction and arrangement of parts may be resortedto without departing from the spirit and scope of the invention asclaimed.

Having described the claimed as new is:

1. In a lamp having an externally threaded tubular mounting sleevrigidly attached thereto and extending therefrom; an adjustable lampbracket comprising an L shaped support arm having an axial boretherethrough, said arm having an internally threaded outer endv and anexternally threaded inner end, a collar having an axial boretherethroughfor rotatably receiving said tubular mounting sleeve, said collar havingan externally threaded end portion, said externally threaded end portionof said collar being screw threadedly received in said internallythreaded outer end of said support arm, a retaining nut rotatablydisposed in said bore in said arm and uninvention, what is derlying theinner end of said collar for retaining the lamp mounting sleeve in thebore in the collar, a flange having an axial bore therein rotatablyreceiving said inner end of said support arm, a lock nut threadedlyreceived on said externally threaded inner end of said arm retainingsaid flange in engagement with said arm.

2. On a lamp having an externally threaded mounting sleeve rigidlyattached thereto and extending therefrom; an adjustable lamp bracketcomprising an L shaped support arm having an axial bore therethrough,said arm having an internally threaded outer end and an externallythreaded inner end, a stepped collar having an outwardly flared lampsupporting flange on its upper end, and an externally threaded lower endportion of reduced diameter, an annular shoulder between said upper andlower ends of said collar, said internally threaded outer end of saidarm threadedly engaging said lower end portion of said collar andabutting said. shoulder, said collar having an axial bore therethroughfor rotatably receiving said mounting sleeve, a retainingnut rotatablydisposed in said bore in said arm and underlying the inner end of saidcollar for threadedly engaging said mounting sleeve, a resilient ringpositioned between said retaining nut and the inner end of said collarfor yieldingly urging the lamp into engagement with said lamp supportingflange of said collar, a flange having an axial bore therein rotatablyreceiving said inner end of said support arm, means for retaining saidflange in engagement with said arm.

3. On a lamp having an externally threaded mounting sleeve rigidlyattached thereto and extending therefrom; an adjustable lamp bracketcomprising an L shaped support arm having an axial bore therethrough,said arm having an internally threaded outer end and an inner end,

a stepped collar having an outwardly flared lamp supporting flange onits upper end, and an externally threaded lower end portion of reduceddiameter, an annular shoulder between said upper and lower ends of saidcollar, saidinternally threaded outer end of said arm threadedlyengaging said lower end portion of said collar and abutting saidshoulder, said collar having an axial bore therethrough for rotatablyreceiving said mounting sleeve, a retaining nut rotat ably disposed insaid bore in said arm and underlying the inner end of said collar forthreadedly engaging said mounting sleeve, a resilient ring positionedbetween said retaining nut and'the inner end of said collar foryieldingly urgingthe Iamp into engagement with said lamp supportingflange of said collar, said inner end of said arm having a cylindricalextension thereon of reduced diameter, a seat between said extension andsaid inner end of said arm, a ferrule rotatably received on saidextension, a resilient ring mountedon said extension between said seatand the ad jacent end of said ferrule, a radiallyextendi'ngmountingflange on the other end of said ferrule, said fiange having a recesstherein, means for locking the inner end of said extension to saidflange, said locking means being receivable in said recess. I

BALTAZAR J. OSOW'SKI.

REFERENCES CITED- The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date- 1,206,871 Locke Dec. 5, 19161,257,837 Fowler Feb. 26', 1918 1,561,625 Whittington Nov. 17, 19251,761,022 Parker June '3, 1930

